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研究生:王信凱
研究生(外文):Hsin-Kain Wang
論文名稱:TCPYam:一個具有高效能的公平傳輸控制協定
論文名稱(外文):TCP Yam: A Fair Transmission Control Protocol with High Throughput
指導教授:嚴威嚴威引用關係
指導教授(外文):Wei Yen
學位類別:碩士
校院名稱:大同大學
系所名稱:資訊工程學系(所)
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
語文別:英文
論文頁數:50
中文關鍵詞:傳輸控制協定資料傳輸格式壅塞控制慢傳輸機制壅塞避免機制快速重傳機制快速恢復機制傳輸效能
外文關鍵詞:TCPTCP HeaderCongestion ControlSlow StartCongestion AvoidanceFast RestransmitFast RecoveryRTT
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在網路的發展裡面,傳輸控制協定(transmission control protocol)是一門重要的研究領域。傳輸控制協定負責使用者之間的資料傳輸、資料傳輸格式、壅塞控制等工作。此篇論文為研究傳輸控制協定裡的壅塞控制技術。在傳輸控制協定裡,利用壅塞控制來調節網路之間的資料傳輸,並同時兼顧每個連線的效能儘可能的一致,使得各連線擁有相同的公平性。在此,傳輸效能和公平性是藉以判斷傳輸控制優劣的指標。對於網路之間的互相傳輸有可能影響連線,使得傳輸效能的落差變大。於是,如何盡量提高傳輸效能和維持網路之間一定的公平性是本論文主要考量。
藉由電腦模擬實驗的觀察和統計,發現我們所提出的改善機制能提高傳輸效能且將效能維持在八成到九成的網路頻寬中、和維持相當程度的公平性,此皆不遜色於現行使用的傳輸協定。而這些數據收錄於此論文的第四章。
In the evolution of network technology, the transmission control protocol (TCP) is an important research topic. It is responsible for data transmissions of end users, flow control, congestion control, and other tasks.
The thesis focuses on the congestion control scheme. In TCP, the congestion control is used to maximize the data transmission without causing network congestion. There exist different congestion control schemes, whose performance in throughput and fairness varies. Some trade fairness for throughput and some vice versa. Our research goal is to achieve good performance on both throughput and fairness.
Through computer simulations, we are given to understand that our scheme can improve the throughput and preserve the fairness.
ACKNOWLEDGEMENTS i
ABSTRACT (Chinese) iii
ABSTRACT iv
TABLE OF CONTENTS v
LIST OF FIGURES vii
CHAPER 1 INTRODUCTION 1
1.1 Motivation 1
1.2 Transmission Control Protocol (TCP) 2
1.2.1 History of TCP 6
1.3 Thesis Organization 7
CHAPER 2 RELATED WORKS 8
2.1 TCP Tahoe 8
2.2 TCP Reno 12
2.3 TCP Vegas 14
2.4 TCP for High-Speed Network 17
2.5 TCP for Satellite Network 19
CHAPER 3 TCP Yam: A HIGH THROUGHPUT AND FAIRNESS TRANSMISSION CONTROL PROTOCOL 23
3.1 TCP Yam’s Scheme 23
3.1.1 Fast Recovery 24
3.1.2 Congestion Avoidance 27
CHAPER 4 EXPERIMENTS AND EVALUATE 30
4.1 Simulation Environment and Parameters 30
4.2 Static Traffic Scenarios 31
4.3 Dynamic Traffic Scenarios 40
CHAPER 5 CONCLUSIONS AND FUTURE WORK 47
BIBLIOGRAPHY 48
[1]J. Postel (ed.), “DoD standard Transmission Control Protocol,” Internet RFC 761, USC/Information Sciences Institute, Jan. 1980
[2]J. Postel (ed.), “Transmission Control Protocol – DARPA Internet Program Protocol Specification,” Internet RFC 793, USC/Information Sciences Institute, Sep. 1981
[3]W. Stevens (ed.), “TCP Slow Start, Congestion Avoidance, Fast Retransmit, and Fast Recovery Algorithms,” Internet RFC 2001, Jan. 1997
[4]T. R. Henderson, E. Sahouria, S. McCanne, and R. H. Katz, “On Improving Fairness of TCP Congestion Avoidance,” in the Proc. of 1998 Global Telecommunications Conference: The Bridge to Global Integration, vol. 1, pp. 539–544, Nov. 1998
[5]M. Mathis, J. Mahdavi, S. Floyd, and A. Romanow, “TCP Selective Acknowledgment Options,” Internet RFC 2018, Oct. 1996
[6]M. Allman, V. Paxson, and W. Stevens “TCP Congestion Control,” Internet RFC 2581, Apr. 1999
[7]V. Jacobson, “Congestion Avoidance and Control,” ACM SIGCOMM Computer Communication Review, vol. 25, issue 1, pp. 157–187, Jan. 1995
[8]S. Floyd, “HighSpeed TCP for Large Congestion Windows,” RFC 3649, Dec. 2003
[9]T. Kelly, “Scalable TCP: Improving Performance in Highspeed Wide Area Networks,” ACM SIGCOMM Computer Communication Review, vol. 33, issue 2, pp. 83–91, Apr. 2003
[10]V.N. Padmanabhan and R.H. Katz, “TCP Fast Start: A Technique for Speeding Up Web Transfers,” in the Proc. of the IEEE Globecom’98 Internet Mini- Conference, Nov. 1998
[11]A. Kuzmanovic and E.W. Knightly, “TCP-LP: Low-Priority Service via End-Point Congestion Control,” IEEE/ACM Transaction on Networking, vol. 14, issue 4, pp. 739–752, Aug. 2006
[12]M. Allman, S. Floyd, and C. Partridge, “Increasing TCP's Initial Window,” Internet RFC 3390, Oct. 2002
[13]H. Balakrishnan and R.H. Katz, “Explicit Loss Notification and Wireless Web Performance,” in the Proc. of the IEEE Globecom’98 Internet Mini-Conference, Nov. 1998
[14]H. Balakrishnan, S. Seshan, E. Amir and R. H. Katz, “Improving TCP/IP Performance over Wireless Networks,” in the Proc. of the ACM Conference on Mobile Computing and Networking, pp. 2–11, Nov. 1995
[15]H. Balakrishnan, V. N. Padmanabhan, and S. Seshan, and R. H. Katz, “A Comparison of Mechanisms for Improving TCP Performance over Wireless Links,” IEEE/ACM Transaction on Networking, vol. 5, issue 6, pp. 756–769, Dec. 1996
[16]C. Casetti, M. Gerla, S. Mascolo, M.Y. Sanadidi, and R. Wang, “TCP Westwood: End-to-End Congestion Control for Wired/Wireless Networks,” Wireless Networks, vol. 8, pp. 467–469, Sep. 2002
[17]K. Fall and S. Floyd, “Simulation-Based Comparisons of Tahoe, Reno and SACK TCP,” ACM SIGCOMM Computer Communication Review, vol. 26, issue. 3, pp. 5–12, Jul. 1996
[18]L.S. Brakmo, S. W. O'Malley, and L. L. Peterson, “TCP Vegas: New Techniques for Congestion Detection and Avoidance,” ACM SIGCOMM Computer Communication Review, vol. 24, issue 4, pp.24–35, Aug. 1994
[19]L.S. Brakmo and L.L. Peterson, “TCP Vegas: End to end congestion avoidance on a global internet,” IEEE Journal on Selected Areas in Communication, vol. 13, issue 8, pp. 1465–1480, Oct. 1995
[20]I.F. Akyildiz, G. Morabito, S. Palazzo, “TCP-Peach: A New Congestion Control Scheme for Satellite IP Networks,” IEEE/ACM Transactions Networking, vol. 9, issue 3, pp. 307–321, Jun. 2001
[21]I.F. Akyildiz, X. Zhang, and J. Fang, “TCP-Peach+: Enhancement of TCP-Peach for Satellite IP Networks,” IEEE communications letters, vol. 6, issue 7, pp. 303–305, Jul. 2002
[23] R.K. Jain, D.W. Chiu, and W.R. Hawe, “A Quantitative Measure of Fairness and Discrimination for Resource Allocation in Shared Systems,” DEC Research Report TR-301, Sep. 1984
[22] D. X. Wei, C. Jin, S. H. Low, and S. Hegde, “FAST TCP: Motivation, Architecture, Algorithms, Performance,” IEEE/ACM Transactions on Networking, vol. 14, issue 6, pp.1246–1259, Dec. 2006
[24] J. Postel, “Internet Protocol,” Internet RFC 791, Sep. 1981
[25]The network simulator – ns-2. http://www.isi.edu/nsnam/ns. o/ns2/ns2.htm
[26]NS2 Learning Guide. http://140.116.72.80/~smallko/ns2/ns2.htm
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